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1975 CB750k2 cafe build

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benholmes21:
Hi

Thought I’d finally get round to making a thread on here for my CB750 build after being on here a while looking at everyone else’s build.

I bought the bike in January, looking like this and although fairly original, it had been sat a long time after a partial restoration and under closer inspection, it wasn’t quite as immaculate as it appears on the photos!




Within a week the bike was stripped fully whilst I worked out which way I was going to go as I really like the mix of cafe/brat bikes.

The rear of the frame was cut and an upswept hoop added, ready for moulding a fibreglass hump and aluminium seat pan.

The tank was blasted at work, which I found had a good few dents in, hidden by filler so plenty of new parts have been ordered from 4into1  which I shall update with as I am currently waiting on that much I’ve lost track of what’s actually been ordered. I treated it to a replacement exhaust as the black one was a bit rough and didn’t quite fit with the look I wanted so opted for a Delkevic stainless system and a new throttle assembly for minimal hand controls too.

I also shaved the top yoke/clamp as I wanted a minimal cockpit but this has now been sold as I’ve replaced it with a billet one from Cognito Moto







When welding the hoop, I turned two plugs and plug welded them into the hoop and frame then seam welded them.

I didn’t want to leave an open gusset so shortened the original sheet metal shock gusset and welded them back on, so they just need the welds fettling to smooth them out.






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UK Pete:
Looking good

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benholmes21:
Thanks!

I’m currently waiting on a 3 big shipments from across the pond from Cognito Moto, 4into1 And CycleX so hopefully once these show up, there will be a little more interesting photos!


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Bryanj:
Welcome after the trip from the US forum, On there you asked about 500 swing arms if you really want to go that route I may have a spare but you still have the problem of the wheel as I doubt a 750 will fit and I am sure the swing arm is narrower so big tyres rub

benholmes21:

--- Quote from: Bryanj on June 18, 2018, 04:40:16 PM ---Welcome after the trip from the US forum, On there you asked about 500 swing arms if you really want to go that route I may have a spare but you still have the problem of the wheel as I doubt a 750 will fit and I am sure the swing arm is narrower so big tyres rub

--- End quote ---

Thanks Bryan!! I did indeed, I had read somewhere that it was a direct fit on the CB550 to the 750 and I could use the 750 rear wheel.
Seemed to be most people swap because it’s slightly longer and allows more clearance on the rear wheel? Although I could be wrong!


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